Denial of service in Juniper Junos OS

1) Input validation error

EUVDB-ID: #VU29690

Risk: Medium

CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2020-1640

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to insufficient validation of user-supplied input when processing incoming genuine BGP packets within Juniper Networks RPD daemon. A remote attacker can pass specially crafted input to the application and perform a denial of service (DoS) attack.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Juniper Junos OS: 16.1R7-S6 - 20.1

CPE2.3

• cpe:2.3:o:juniper_networks:juniper_junos_os:16.1R7-S6:*:*:*:*:*:*:*
• cpe:2.3:o:juniper_networks:juniper_junos_os:16.1R7-S7:*:*:*:*:*:*:*
• cpe:2.3:o:juniper_networks:juniper_junos_os:17.3R3-S7:*:*:*:*:*:*:*
• cpe:2.3:o:juniper_networks:juniper_junos_os:17.4R3-S1:*:*:*:*:*:*:*
• cpe:2.3:o:juniper_networks:juniper_junos_os:17.4R2-S9:*:*:*:*:*:*:*
• cpe:2.3:o:juniper_networks:juniper_junos_os:18.1R3-S9:*:*:*:*:*:*:*
• cpe:2.3:o:juniper_networks:juniper_junos_os:18.2R3-S4:*:*:*:*:*:*:*
• cpe:2.3:o:juniper_networks:juniper_junos_os:18.2X75-D411:*:*:*:*:*:*:*
• cpe:2.3:o:juniper_networks:juniper_junos_os:18.3R3:*:*:*:*:*:*:*
• cpe:2.3:o:juniper_networks:juniper_junos_os:18.3R2-S3:*:*:*:*:*:*:*
• cpe:2.3:o:juniper_networks:juniper_junos_os:18.3R3-S1:*:*:*:*:*:*:*
• cpe:2.3:o:juniper_networks:juniper_junos_os:18.4R1-S5:*:*:*:*:*:*:*
• cpe:2.3:o:juniper_networks:juniper_junos_os:18.4R3-S2:*:*:*:*:*:*:*
• cpe:2.3:o:juniper_networks:juniper_junos_os:19.1R2-S1:*:*:*:*:*:*:*
• cpe:2.3:o:juniper_networks:juniper_junos_os:19.1R1-S4:*:*:*:*:*:*:*
• cpe:2.3:o:juniper_networks:juniper_junos_os:19.2R1-S3:*:*:*:*:*:*:*
• cpe:2.3:o:juniper_networks:juniper_junos_os:19.2R1-S4:*:*:*:*:*:*:*
• cpe:2.3:o:juniper_networks:juniper_junos_os:19.3R1:*:*:*:*:*:*:*
• cpe:2.3:o:juniper_networks:juniper_junos_os:19.3R2-S1:*:*:*:*:*:*:*
• cpe:2.3:o:juniper_networks:juniper_junos_os:19.3R1-S1:*:*:*:*:*:*:*
• cpe:2.3:o:juniper_networks:juniper_junos_os:19.4R1-S1:*:*:*:*:*:*:*
• cpe:2.3:o:juniper_networks:juniper_junos_os:20.1:*:*:*:*:*:*:*

External links

http://kb.juniper.net/InfoCenter/index?page=content&id=JSA11024&cat=SIRT_1&actp=LIST

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.